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→ZOS Section
==ZOS Section==
==ZOS Section==
*The formula to calculate COMBINATION in ZOS is: <math>Combin(n,r)</math>
*The formula to calculate COMBINATION in ZOS is <math>Combin(n,r)</math>
**<math>n</math> is the number of items.
**<math>n</math> is the number of items.
**<math>r</math> is the number of items in each arrangement.
**<math>r</math> is the number of items in each arrangement.
==Examples==
==Examples==